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SUMMARY:The search of higher multipole radiation in gravitational waves fr
 om compact binary coalescences by a minimally-modelled pipeline
DTSTART;VALUE=DATE-TIME:20210901T152500Z
DTEND;VALUE=DATE-TIME:20210901T154000Z
DTSTAMP;VALUE=DATE-TIME:20260411T174148Z
UID:indico-contribution-15501@indico.ific.uv.es
DESCRIPTION:Speakers: Odysse Halim (INFN Trieste)\nThe coherent WaveBurst 
 (cWB) pipeline implements a minimally-modelled search to find a coherent r
 esponse in the network of gravitational wave detectors of the LIGO-Virgo C
 ollaboration in the time-frequency domain. Here we describe an extension o
 f the cWB analysis to detect spectral features beyond the main quadrupolar
  emission of gravitational waves during the inspiral phase of compact bina
 ry coalescences. The search is performed by defining specific regions in t
 he time-frequency map to extract the energy of harmonics of main quadrupol
 e mode in the inspiral phase. The shapes of these regions are fixed by a m
 ild optimization of their Receiver Operating Characteristic curves. This m
 ethod has already been used in the GW190814 discovery paper (ref. ApJ). He
 re we describe in full detail the procedure to detect the (3\, 3) multipol
 e in GW190814 within the cWB framework\, as well as additional searches fo
 r other subdominant modes. We also apply this method on another event that
  displays possible higher multipoles\, GW190412.\n\nKeywords: gravitationa
 l waves\, analysis\, multipoles\, compact binary coalescences\n\nhttps://i
 ndico.ific.uv.es/event/6178/contributions/15501/
LOCATION:
URL:https://indico.ific.uv.es/event/6178/contributions/15501/
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